FNA: Arctostaphylos purissima vs. Arctostaphylos cruzensis

	Arctostaphylos purissima	Arctostaphylos cruzensis
	La Purisima manzanita, La Purissima manzanita	Arroyo De La cruz manzanita, La Cruz manzanita
Habit	Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs.	Shrubs, prostrate or mat- or mound-forming, 0.1–1 m; burl absent; twigs sparsely short-hairy to sparsely hairy.
Leaves	petiole to 2 mm; blade bright green, shiny, orbiculate-ovate to ± orbiculate, 1–2.5 × 1–2 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous.	petiole to 2 mm; blade bright green, shiny, oblong-ovate, 1.5–3 × 1–2.5 cm, base auriculate-clasping, margins entire or toothed, plane, (hairy-ciliate proximally), surfaces smooth, finely tomentose, glabrescent.
Inflorescences	racemes, simple or 1–2-branched; immature inflorescence pendent, (branches dense, concealed by bracts), axis 0.5–1 cm, 1+ mm diam., densely short-hairy with longer hairs; bracts not appressed, (overlapping), leaflike, ovate to lanceolate-ovate, 5–8 mm, apex acute, surfaces glabrous.	panicles, 1–3-branched; immature inflorescence pendent, (branches crowded, bell-shaped, concealed by bracts), axis 0.5–1.5 cm, 1+ mm diam., sparsely short-hairy and hairy; bracts appressed, leaflike, lanceolate to lanceolate-ovate, 5–15 mm, apex acute, surfaces hairy.
Pedicels	3–5 mm, sparsely hairy or glabrous.	4–5 mm, sparsely hairy.
Flowers	corolla white, conic to urceolate; ovary glabrous.	corolla white, urceolate; ovary densely white-hairy.
Fruits	depressed-globose, 5–8 mm diam., glabrous.	depressed-globose, 8–10 mm diam., glabrous.
Stones	distinct.	distinct.
2n	= 26.	= 26.

	Arctostaphylos purissima	Arctostaphylos cruzensis
Phenology	Flowering winter–early spring.	Flowering winter–early spring.
Habitat	Maritime chaparral on deep, sandy soils	Maritime chaparral, grasslands on alluvial and fluvial soils
Elevation	0-100 m (0-300 ft)	0-100 m (0-300 ft)
Distribution	CA [WildflowerSearch map] [BONAP county map]	CA [BONAP county map]
Discussion	Of conservation concern. Arctostaphylos purissima is known from hills and mesas near the coast (Burton Mesa) in Santa Barbara County. (Discussion copyrighted by Flora of North America; reprinted with permission.)	Of conservation concern. Arctostaphylos cruzensis is found near the coast in southern Monterey and northern San Luis Obispo counties. It is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 8, p. 434.	FNA vol. 8, p. 435.
Parent taxa	Ericaceae > subfam. Arbutoideae > Arctostaphylos	Ericaceae > subfam. Arbutoideae > Arctostaphylos
Sibling taxa	A. andersonii, A. auriculata, A. bakeri, A. canescens, A. catalinae, A. columbiana, A. confertiflora, A. crustacea, A. cruzensis, A. densiflora, A. edmundsii, A. franciscana, A. gabilanensis, A. glandulosa, A. glauca, A. glutinosa, A. hispidula, A. hookeri, A. hooveri, A. imbricata, A. insularis, A. klamathensis, A. luciana, A. malloryi, A. manzanita, A. mewukka, A. montana, A. montaraensis, A. montereyensis, A. morroensis, A. myrtifolia, A. nevadensis, A. nissenana, A. nortensis, A. nummularia, A. obispoensis, A. ohloneana, A. osoensis, A. otayensis, A. pacifica, A. pajaroensis, A. pallida, A. parryana, A. patula, A. pechoensis, A. pilosula, A. pringlei, A. pumila, A. pungens, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, A. sensitiva, A. silvicola, A. stanfordiana, A. tomentosa, A. uva-ursi, A. virgata, A. viridissima, A. viscida	A. andersonii, A. auriculata, A. bakeri, A. canescens, A. catalinae, A. columbiana, A. confertiflora, A. crustacea, A. densiflora, A. edmundsii, A. franciscana, A. gabilanensis, A. glandulosa, A. glauca, A. glutinosa, A. hispidula, A. hookeri, A. hooveri, A. imbricata, A. insularis, A. klamathensis, A. luciana, A. malloryi, A. manzanita, A. mewukka, A. montana, A. montaraensis, A. montereyensis, A. morroensis, A. myrtifolia, A. nevadensis, A. nissenana, A. nortensis, A. nummularia, A. obispoensis, A. ohloneana, A. osoensis, A. otayensis, A. pacifica, A. pajaroensis, A. pallida, A. parryana, A. patula, A. pechoensis, A. pilosula, A. pringlei, A. pumila, A. pungens, A. purissima, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, A. sensitiva, A. silvicola, A. stanfordiana, A. tomentosa, A. uva-ursi, A. virgata, A. viridissima, A. viscida
Name authority	P. V. Wells: Madroño 19: 195. 1968 ,	Roof: Leafl. W. Bot 9: 218. 1962 ,
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Arctostaphylos purissima

Arctostaphylos cruzensis

La Purisima manzanita, La Purissima manzanita

Arroyo De La cruz manzanita, La Cruz manzanita

Habit

Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs.

Shrubs, prostrate or mat- or mound-forming, 0.1–1 m; burl absent; twigs sparsely short-hairy to sparsely hairy.

Leaves

petiole to 2 mm;

blade bright green, shiny, orbiculate-ovate to ± orbiculate, 1–2.5 × 1–2 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous.

petiole to 2 mm;

blade bright green, shiny, oblong-ovate, 1.5–3 × 1–2.5 cm, base auriculate-clasping, margins entire or toothed, plane, (hairy-ciliate proximally), surfaces smooth, finely tomentose, glabrescent.

Inflorescences

racemes, simple or 1–2-branched;

immature inflorescence pendent, (branches dense, concealed by bracts), axis 0.5–1 cm, 1+ mm diam., densely short-hairy with longer hairs;

bracts not appressed, (overlapping), leaflike, ovate to lanceolate-ovate, 5–8 mm, apex acute, surfaces glabrous.

panicles, 1–3-branched;

immature inflorescence pendent, (branches crowded, bell-shaped, concealed by bracts), axis 0.5–1.5 cm, 1+ mm diam., sparsely short-hairy and hairy;

bracts appressed, leaflike, lanceolate to lanceolate-ovate, 5–15 mm, apex acute, surfaces hairy.

Pedicels

3–5 mm, sparsely hairy or glabrous.

4–5 mm, sparsely hairy.

Flowers

corolla white, conic to urceolate;

ovary glabrous.

corolla white, urceolate;

ovary densely white-hairy.

Fruits

depressed-globose, 5–8 mm diam., glabrous.

depressed-globose, 8–10 mm diam., glabrous.

Stones

distinct.

= 26.

Arctostaphylos purissima

Arctostaphylos cruzensis

Phenology

Flowering winter–early spring.

Habitat

Maritime chaparral on deep, sandy soils

Maritime chaparral, grasslands on alluvial and fluvial soils

Elevation

0-100 m (0-300 ft)

Distribution

[WildflowerSearch map]

[BONAP county map]

Discussion

Of conservation concern.

Arctostaphylos purissima is known from hills and mesas near the coast (Burton Mesa) in Santa Barbara County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Arctostaphylos cruzensis is found near the coast in southern Monterey and northern San Luis Obispo counties. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source

FNA vol. 8, p. 434.

FNA vol. 8, p. 435.

Parent taxa

Ericaceae > subfam. Arbutoideae > Arctostaphylos

Sibling taxa

A. andersonii, A. auriculata, A. bakeri, A. canescens, A. catalinae, A. columbiana, A. confertiflora, A. crustacea, A. cruzensis, A. densiflora, A. edmundsii, A. franciscana, A. gabilanensis, A. glandulosa, A. glauca, A. glutinosa, A. hispidula, A. hookeri, A. hooveri, A. imbricata, A. insularis, A. klamathensis, A. luciana, A. malloryi, A. manzanita, A. mewukka, A. montana, A. montaraensis, A. montereyensis, A. morroensis, A. myrtifolia, A. nevadensis, A. nissenana, A. nortensis, A. nummularia, A. obispoensis, A. ohloneana, A. osoensis, A. otayensis, A. pacifica, A. pajaroensis, A. pallida, A. parryana, A. patula, A. pechoensis, A. pilosula, A. pringlei, A. pumila, A. pungens, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, A. sensitiva, A. silvicola, A. stanfordiana, A. tomentosa, A. uva-ursi, A. virgata, A. viridissima, A. viscida

A. andersonii, A. auriculata, A. bakeri, A. canescens, A. catalinae, A. columbiana, A. confertiflora, A. crustacea, A. densiflora, A. edmundsii, A. franciscana, A. gabilanensis, A. glandulosa, A. glauca, A. glutinosa, A. hispidula, A. hookeri, A. hooveri, A. imbricata, A. insularis, A. klamathensis, A. luciana, A. malloryi, A. manzanita, A. mewukka, A. montana, A. montaraensis, A. montereyensis, A. morroensis, A. myrtifolia, A. nevadensis, A. nissenana, A. nortensis, A. nummularia, A. obispoensis, A. ohloneana, A. osoensis, A. otayensis, A. pacifica, A. pajaroensis, A. pallida, A. parryana, A. patula, A. pechoensis, A. pilosula, A. pringlei, A. pumila, A. pungens, A. purissima, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, A. sensitiva, A. silvicola, A. stanfordiana, A. tomentosa, A. uva-ursi, A. virgata, A. viridissima, A. viscida

Name authority

P. V. Wells: Madroño 19: 195. 1968 ,

Roof: Leafl. W. Bot 9: 218. 1962 ,

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

Choose a data source: Flora of North America

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Flora of North America species comparison

Arctostaphylos purissima

Arctostaphylos cruzensis

Arctostaphylos purissima

Arctostaphylos cruzensis